RegionInfo.GeoId Property

// This example demonstrates the RegionInfo.EnglishName, NativeName,  
// CurrencyEnglishName, CurrencyNativeName, and GeoId properties. 

using System;
using System.Globalization;

class Sample 
{
    public static void Main() 
    {
    RegionInfo ri = new RegionInfo("SE"); // Sweden

    Console.Clear();
    Console.WriteLine("Region English Name: . . . {0}", ri.EnglishName);
    Console.WriteLine("Native Name: . . . . . . . {0}", ri.NativeName);
    Console.WriteLine("Currency English Name: . . {0}", ri.CurrencyEnglishName);
    Console.WriteLine("Currency Native Name:. . . {0}", ri.CurrencyNativeName);
    Console.WriteLine("Geographical ID: . . . . . {0}", ri.GeoId);
    }
}
/*
This code example produces the following results:

Region English Name: . . . Sweden
Native Name: . . . . . . . Sverige
Currency English Name: . . Swedish Krona
Currency Native Name:. . . Svensk krona
Geographical ID: . . . . . 221

*/